cable tweak

cij · Post by **cij** » Fri Jun 20, 2003 8:33 pm

1. What type of connection do you have? cable

2. Who is your ISP and what is your advertised speed from them?

roadrunner cable 2500/384

3. What are your current settings now?

TCP properties for IP = xxx.xxx.xxx.xxx ()
Browser/OS = Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)
Note: Read the Analyzer FAQ if the above is not your IP address.

TCP options string = 020405b401010402
MTU = 1500
MTU is fully optimized for broadband.
MSS = 1460
Maximum useful data in each packet = 1460, which equals MSS.

Default Receive Window (RWIN) = 64240
RWIN Scaling (RFC1323) = 0 bits
Unscaled Receive Window = 64240

RWIN is a multiple of MSS
Other values for RWIN that might work well with your current MTU/MSS:
513920 (MSS x 44 * scale factor of 8)
256960 (MSS x 44 * scale factor of 4)
128480 (MSS x 44 * scale factor of 2)
bandwidth * delay product:

Your RcvWindow limits you to: 2569.6 kbps (321.2 KBytes/s) @ 200ms
Your RcvWindow limits you to: 1027.84 kbps (128.48 KBytes/s) @ 500ms
MTU Discovery (RFC1191) = ON
Time to live left = 110 hops

TTL value is ok.
Timestamps (RFC1323) = OFF
Selective Acknowledgements (RFC2018) = ON
IP type of service field (RFC1349) = 00000000

4. Please tell us your operating system i.e. 95, 98, 98SE, ME, 2K or XP?

windows xp pro

also have a linksys router 4 port 10/100

cij · Post by **cij** » Fri Jun 20, 2003 8:39 pm

also installed cablenut , spybot and adware

mnosteele52 · Post by **mnosteele52** » Fri Jun 20, 2003 9:29 pm

Hi ci.j

, first find your optimum TcpWindowSize by using the formula in my help & tips link and use the following settings in CableNut:

DefaultReceiveWindow = 320000
DefaultSendWindow = 49152
DisableAddressSharing = 1
InitialLargeBufferCount = 200
InitialMediumBufferCount = 480
InitialSmallBufferCount = 640
LargeBufferSize = 819200
MaxFastTransmit = 64000
MediumBufferSize = 150400
PriorityBoost = 0
SmallBufferSize = 12800
TransmitWorker = 32
FastSendDatagramThreshold = 4096
EnableFastRouteLookup = 1
EnablePMTUDiscovery = 1
IgnorePushBitsOnReceive = 0
GlobalMaxTcpWindowSize = value you found
MaxFreeTcbs = 8000
MaxHashTableSize = 16384
MaxNormLookupMemory = 5000000
SackOpts = 1
SynAttackProtect = 1
Tcp1323Opts = 0
TcpLogLevel = 1
TcpMaxDupAcks = 3
TcpMaxHalfOpen = 100
TcpMaxHalfRetried = 80
TcpRecvSegmentSize = 1460
TcpSendSegmentSize = 1460
TcpTimedWaitDelay = 30
TcpUseRFC1122UrgentPointer = 0
TcpWindowSize = value you found
MaxConnectionsPer1_0Server = 20
MaxConnectionsPerServer = 10
DefaultTTL = 64
DisableUserTOSSetting = 0
TcpMaxDataRetransmissions = 6
DefaultTOSValue = 90

mccoffee · Post by **mccoffee** » Fri Jun 20, 2003 9:47 pm

If you don't have static ips set the guide is here http://broadbandnuts.com/yabbse/index.p ... readid=933 this one will show u how to add the metric important for xp users with routers

http://www.speedguide.net/read_articles.php?id=177 this will show you how to make it static also

Also on the router log onto 192.168.1.1 click on adavanced make sure mtu is enabled to 1500 and block wan request is disabled.